1. College of Animal Science and National Engineering Research Center for Breeding Swine Industry South China Agricultural University Guangzhou P.R. China
2. Department of Animal Sciences Washington Center for Muscle Biology Washington State University Pullman WA USA
3. State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources Guangxi High Education Laboratory for Animal Reproduction and Biotechnology Guangxi University Nanning P.R. China
4. School of Food Sciences Washington State University Pullman WA USA